/**
 * This file is part of WiiuseJ.
 * 
 * WiiuseJ is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * WiiuseJ is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * WiiuseJ. If not, see <http://www.gnu.org/licenses/>.
 */
package wiiusej.utils;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.Toolkit;
import java.awt.geom.AffineTransform;

import wiiusej.wiiusejevents.physicalevents.ExpansionEvent;
import wiiusej.wiiusejevents.physicalevents.IREvent;
import wiiusej.wiiusejevents.physicalevents.MotionSensingEvent;
import wiiusej.wiiusejevents.physicalevents.WiimoteButtonsEvent;
import wiiusej.wiiusejevents.utils.WiimoteListener;
import wiiusej.wiiusejevents.wiiuseapievents.ClassicControllerInsertedEvent;
import wiiusej.wiiusejevents.wiiuseapievents.ClassicControllerRemovedEvent;
import wiiusej.wiiusejevents.wiiuseapievents.DisconnectionEvent;
import wiiusej.wiiusejevents.wiiuseapievents.GuitarHeroInsertedEvent;
import wiiusej.wiiusejevents.wiiuseapievents.GuitarHeroRemovedEvent;
import wiiusej.wiiusejevents.wiiuseapievents.NunchukInsertedEvent;
import wiiusej.wiiusejevents.wiiuseapievents.NunchukRemovedEvent;
import wiiusej.wiiusejevents.wiiuseapievents.StatusEvent;

/**
 * This panel is used to see what buttons are pressed on the wiimote. It
 * displays the result of last ButtonsEvent.
 * 
 * @author guiguito
 */
public class ButtonsEventPanel extends javax.swing.JPanel implements
    WiimoteListener
{

    private Image mImage;// image for double buffering
    private Image wiimoteImage;// image for double buffering
    private WiimoteButtonsEvent buttons;
    private Color pressedColor = Color.RED;
    private Color heldColor = Color.ORANGE;
    private Color releasedColor = Color.YELLOW;
    private Shape shape = new java.awt.geom.Ellipse2D.Double(0, 0, 13, 13);

    /**
     * Default constructor. Red : button just pressed. Orange : button held.
     * Yellow : button just released.
     */
    public ButtonsEventPanel()
    {
        Toolkit toolkit = java.awt.Toolkit.getDefaultToolkit();
        java.net.URL url = ButtonsEventPanel.class.getResource("/img/wiimote.png");
        wiimoteImage = toolkit.createImage(url);
        initComponents();
    }

    /**
     * Constructor used to set colors and shape used.
     * 
     * @param pressColor
     *            color of a button just pressed.
     * @param hColor
     *            color of a button held.
     * @param relColor
     *            color of a button just released.
     * @param sh
     *            shape draw on the buttons.
     */
    public ButtonsEventPanel(
        Color pressColor,
        Color hColor,
        Color relColor,
        Shape sh)
    {
        pressedColor = pressColor;
        heldColor = hColor;
        releasedColor = relColor;
        shape = sh;
        Toolkit toolkit = java.awt.Toolkit.getDefaultToolkit();
        wiimoteImage = toolkit.createImage("img\\wiimote.png");
        initComponents();
    }

    @Override
    public void paintComponent(Graphics g)
    {
        super.paintComponent(g);
        Dimension d = getSize();
        checkOffScreenImage();
        Graphics offG = mImage.getGraphics();
        // offG.setColor(backgroundColor);
        offG.fillRect(0, 0, d.width, d.height);
        Graphics2D g2 = (Graphics2D) mImage.getGraphics();
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);

        // draw buttons pushed
        g2.drawImage(wiimoteImage, 0, 0, this);
        g2.setTransform(new AffineTransform());

        if (buttons != null)
        {
            /* button ONE */
            if (buttons.isButtonOneJustPressed())
            {
                drawFunction(g2, pressedColor, 53, 353);
            }
            if (buttons.isButtonOneHeld())
            {
                drawFunction(g2, heldColor, 53, 353);
            }
            if (buttons.isButtonOneJustReleased())
            {
                drawFunction(g2, releasedColor, 53, 353);
            }

            /* button TWO */
            if (buttons.isButtonTwoJustPressed())
            {
                drawFunction(g2, pressedColor, 53, 395);
            }
            if (buttons.isButtonTwoHeld())
            {
                drawFunction(g2, heldColor, 53, 395);
            }
            if (buttons.isButtonTwoJustReleased())
            {
                drawFunction(g2, releasedColor, 53, 395);
            }

            /* button A */
            if (buttons.isButtonAJustPressed())
            {
                drawFunction(g2, pressedColor, 53, 150);
            }
            if (buttons.isButtonAHeld())
            {
                drawFunction(g2, heldColor, 53, 150);
            }
            if (buttons.isButtonAJustReleased())
            {
                drawFunction(g2, releasedColor, 53, 150);
            }

            /* button B */
            if (buttons.isButtonBJustPressed())
            {
                drawFunction(g2, pressedColor, 16, 149);
            }
            if (buttons.isButtonBHeld())
            {
                drawFunction(g2, heldColor, 16, 149);
            }
            if (buttons.isButtonBJustReleased())
            {
                drawFunction(g2, releasedColor, 16, 149);
            }

            /* button LEFT */
            if (buttons.isButtonLeftJustPressed())
            {
                drawFunction(g2, pressedColor, 33, 77);
            }
            if (buttons.isButtonLeftHeld())
            {
                drawFunction(g2, heldColor, 33, 77);
            }
            if (buttons.isButtonLeftJustReleased())
            {
                drawFunction(g2, releasedColor, 33, 77);
            }

            /* button RIGHT */
            if (buttons.isButtonRightJustPressed())
            {
                drawFunction(g2, pressedColor, 73, 77);
            }
            if (buttons.isButtonRightHeld())
            {
                drawFunction(g2, heldColor, 73, 77);
            }
            if (buttons.isButtonRightJustReleased())
            {
                drawFunction(g2, releasedColor, 73, 77);
            }

            /* button UP */
            if (buttons.isButtonUpJustPressed())
            {
                drawFunction(g2, pressedColor, 54, 60);
            }
            if (buttons.isButtonUpHeld())
            {
                drawFunction(g2, heldColor, 54, 60);
            }
            if (buttons.isButtonUpJustReleased())
            {
                drawFunction(g2, releasedColor, 54, 60);
            }

            /* button DOWN */
            if (buttons.isButtonDownJustPressed())
            {
                drawFunction(g2, pressedColor, 54, 97);
            }
            if (buttons.isButtonDownHeld())
            {
                drawFunction(g2, heldColor, 54, 97);
            }
            if (buttons.isButtonDownJustReleased())
            {
                drawFunction(g2, releasedColor, 54, 97);
            }

            /* button MINUS */
            if (buttons.isButtonMinusJustPressed())
            {
                drawFunction(g2, pressedColor, 20, 230);
            }
            if (buttons.isButtonMinusHeld())
            {
                drawFunction(g2, heldColor, 20, 230);
            }
            if (buttons.isButtonMinusJustReleased())
            {
                drawFunction(g2, releasedColor, 20, 230);
            }

            /* button PLUS */
            if (buttons.isButtonPlusJustPressed())
            {
                drawFunction(g2, pressedColor, 86, 230);
            }
            if (buttons.isButtonPlusHeld())
            {
                drawFunction(g2, heldColor, 86, 230);
            }
            if (buttons.isButtonPlusJustReleased())
            {
                drawFunction(g2, releasedColor, 86, 230);
            }

            /* button HOME */
            if (buttons.isButtonHomeJustPressed())
            {
                drawFunction(g2, pressedColor, 53, 230);
            }
            if (buttons.isButtonHomeHeld())
            {
                drawFunction(g2, heldColor, 53, 230);
            }
            if (buttons.isButtonHomeJustReleased())
            {
                drawFunction(g2, releasedColor, 53, 230);
            }

            buttons = null;
        }

        // put offscreen image on the screen
        g.drawImage(mImage, 0, 0, null);
    }

    /**
     * Function used to factorize code.
     * 
     * @param g2
     *            where to draw a shape.
     * @param col
     *            color to use.
     * @param x
     *            x coordinates.
     * @param y
     *            y coordinates.
     */
    private void drawFunction(Graphics2D g2,
            Color col,
            int x,
            int y)
    {
        g2.setPaint(col);
        g2.translate(x, y);
        g2.draw(shape);
        g2.fill(shape);
        g2.setTransform(new AffineTransform());
    }

    /**
     * check if the mImage variable has been initialized. If it's not the case
     * it initializes it with the dimensions of the panel. mImage is for double
     * buffering.
     */
    private void checkOffScreenImage()
    {
        Dimension d = getSize();
        if (mImage == null || mImage.getWidth(null) != d.width
                || mImage.getHeight(null) != d.height)
        {
            mImage = createImage(d.width, d.height);
        }
    }

    public void onButtonsEvent(WiimoteButtonsEvent arg0)
    {
        setSize(wiimoteImage.getWidth(this), wiimoteImage.getHeight(this));
        buttons = arg0;
        repaint();
    }

    public void onIrEvent(IREvent arg0)
    {
        // nothing
    }

    public void onMotionSensingEvent(MotionSensingEvent arg0)
    {
        // nothing
    }

    public void onExpansionEvent(ExpansionEvent e)
    {
        // nothing
    }

    public void onStatusEvent(StatusEvent arg0)
    {
        // nothing
    }

    public void onDisconnectionEvent(DisconnectionEvent arg0)
    {
        clearView();
    }

    public void onNunchukInsertedEvent(NunchukInsertedEvent e)
    {
        // nothing
    }

    public void onNunchukRemovedEvent(NunchukRemovedEvent e)
    {
        // nothing
    }

    public void onGuitarHeroInsertedEvent(GuitarHeroInsertedEvent arg0)
    {
        // nothing
    }

    public void onGuitarHeroRemovedEvent(GuitarHeroRemovedEvent arg0)
    {
        // nothing
    }

    public void onClassicControllerInsertedEvent(ClassicControllerInsertedEvent arg0)
    {
        // nothing
    }

    public void onClassicControllerRemovedEvent(ClassicControllerRemovedEvent arg0)
    {
        // nothing
    }

    public Color getHeldColor()
    {
        return heldColor;
    }

    public Color getPressedColor()
    {
        return pressedColor;
    }

    public Color getReleasedColor()
    {
        return releasedColor;
    }

    public Shape getShape()
    {
        return shape;
    }

    public void setHeldColor(Color heldColor)
    {
        this.heldColor = heldColor;
    }

    public void setPressedColor(Color pressedColor)
    {
        this.pressedColor = pressedColor;
    }

    public void setReleasedColor(Color releasedColor)
    {
        this.releasedColor = releasedColor;
    }

    public void setShape(Shape shape)
    {
        this.shape = shape;
    }

    public void clearView()
    {
        buttons = null;
        repaint();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated
    // Code">//GEN-BEGIN:initComponents
    private void initComponents()
    {

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(layout.createParallelGroup(
                javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE));
        layout.setVerticalGroup(layout.createParallelGroup(
                javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE));
    }// </editor-fold>//GEN-END:initComponents
    // Variables declaration - do not modify//GEN-BEGIN:variables
    // End of variables declaration//GEN-END:variables
}
